CN201992150U - Pressure limiting valve of automobile or engineering machine air pressure adjusting system - Google Patents
Pressure limiting valve of automobile or engineering machine air pressure adjusting system Download PDFInfo
- Publication number
- CN201992150U CN201992150U CN2010206743749U CN201020674374U CN201992150U CN 201992150 U CN201992150 U CN 201992150U CN 2010206743749 U CN2010206743749 U CN 2010206743749U CN 201020674374 U CN201020674374 U CN 201020674374U CN 201992150 U CN201992150 U CN 201992150U
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- pressure
- valve
- automobile
- pressure regulating
- pressure regulation
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a pressure limiting valve of an automobile or engineering machine air pressure adjusting system. The air passage of an air inlet leading to an air outlet is provided with a valve core of an inlet valve for adjusting the area size of an air passage through-flow cross section; the pressure limiting valve is provided with a pressure regulating apparatus which comprises pressure regulating springs and a pressure regulating screw; the a pressure regulating springs are provided in pressure regulating covers which are in fastening connection with a pressure limiting valve housing; the pressure regulating screw is provided on the pressure regulating covers and in connection with the pressure regulating springs through a pressure regulating spring seat; the communication direction of the air inlet air passage and the valve core of the inlet valve decreases the area size of a through-flow cross section, and the elastic force direction of the pressure regulating springs increases the area size of the through-flow cross section. According to the above technical scheme, the pressure limiting valve is arranged in a whole brake system, which is in favor of better protecting safe air pressure and improving the safety performance of the whole unit of an automobile, thus the utility model can meet the requirements that in an automobile or engineering vehicle brake system, brake pipe air pressure is not over high and pressure limiting protection effects can be taken to the system.
Description
Technical field
The utility model belongs to the technical field of automobile and engineering machinery, relates to the technology of automobile or engineering machinery pressure regulation system delivery air device, and more particularly, the utility model relates to a kind of automobile or engineering machinery pressure regulation system pressure-limit valve.
Background technique
In the prior art, the Safety performance of automobile or engineering machinery pressure regulation system pressure-limit valve is not high enough, and simultaneously, the structure of its product is compact inadequately and reasonable.
The model utility content
Problem to be solved in the utility model provides a kind of automobile or engineering machinery pressure regulation system pressure-limit valve, its objective is the safe application performance that improves car load.
To achieve these goals, the technological scheme taked of the utility model is:
Automobile provided by the utility model or engineering machinery pressure regulation system pressure-limit valve, comprise limiting valve body, suction port and air outlet, described pressure-limit valve is established valve assembly, and the structure of described valve assembly is to establish the suction valve spool of regulating this gas circuit passage section area size on suction port leads to the gas circuit of air outlet; Described pressure-limit valve is established regulator, and described regulator comprises pressure adjusting spring, pressure regulating screw, and described pressure adjusting spring is located in the pressure regulation cover, and described pressure regulation cover and described limiting valve body are fastenedly connected; Described pressure regulating screw is installed on the described pressure regulation cover, and is connected with described pressure adjusting spring by the pressure adjusting spring seat; The communication direction of the gas circuit of described suction port and suction valve spool reduces described passage section area, and the elastic force direction of described pressure adjusting spring is that described passage section area is increased.
Described valve assembly is connected with valve spring by holder for valve spring; The elastic force direction of described valve spring reduces described passage section area; Described valve spring is installed in down and covers, and described lower cover and described limiting valve body are fastenedly connected.
Described lower cover is by realizing sealing between O-ring seals and the described limiting valve body.
Described lower cover is fastenedly connected by back-up ring and described limiting valve body.
Described suction valve spool is realized sealing by seal ring and described limiting valve body.
Described seal ring is connected with described pressure adjusting spring by piston.
Establish vent on the described pressure regulation cover, adopt dust ring to cover on the outer aperture of described vent, described dust ring is fixed on the described pressure regulation cover by dustproof clip.
The utility model adopts technique scheme; in whole braking system, pressure-limit valve is set; help the safe air pressure in the better protection braking system; improved the safe application performance of car load; can satisfy in automobile or the engineering vehicle braking system; braking line air pressure is unlikely to too high, and system is played the voltage-limiting protection effect.
Description of drawings
Below expressed content of the accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present utility model.
Be labeled as among the figure:
1, limiting valve body, 2, back-up ring, 3, O-ring seals, 4, lower cover, 5, valve spring, 6, holder for valve spring, 7, valve assembly, 8, suction valve spool, 9, seal ring, 10, seal ring, 11, piston, 12, pressure adjusting spring, 13, the pressure adjusting spring seat, 14, pressure regulation cover, 15, dust ring, 16, dustproof clip, 17, pressure regulating screw, 18, the air outlet, 19, suction port.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and working principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technological scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 1 is a kind of automobile or engineering machinery pressure regulation system pressure-limit valve, comprises limiting valve body 1, suction port 19 and air outlet 18.It is after braking system is used pressure-limit valve, the constant air pressure adjustment protective gear of pipeline output rearwards.Pressure-limit valve interconnects by inlet, outlet screw thread and braking line.
In order to solve the problem that exists at the described present known technology of this specification background technique part and to overcome its defective, realize the goal of the invention of the safe application performance of raising car load, the technological scheme that the utility model is taked is:
Automobile provided by the utility model or engineering machinery pressure regulation system pressure-limit valve, described pressure-limit valve is established valve assembly 7, and the structure of described valve assembly 7 is to establish the suction valve spool 8 of regulating this gas circuit passage section area size on suction port 19 leads to the gas circuit of air outlet 18; Described pressure-limit valve is established regulator, and described regulator comprises pressure adjusting spring 12, pressure regulating screw 17, and described pressure adjusting spring 12 is located in the pressure regulation cover 14, and described pressure regulation cover 14 is fastenedly connected with described limiting valve body 1; Described pressure regulating screw 17 is installed on the described pressure regulation cover 14, and is connected with described pressure adjusting spring 12 by pressure adjusting spring seat 13; The communication direction of the gas circuit of described suction port 19 and suction valve spool 8 reduces described passage section area, and the elastic force direction of described pressure adjusting spring 12 is that described passage section area is increased.
Adopt technique scheme; in whole braking system, pressure-limit valve is set; help the safe air pressure in the better protection braking system; improved the safe application performance of car load; can satisfy in automobile or the engineering vehicle braking system; braking line air pressure is unlikely to too high, and system is played the voltage-limiting protection effect.
Concrete structure of the present utility model:
Above-described valve assembly 7 is connected with valve spring 5 by holder for valve spring 6; The elastic force direction of described valve spring 5 reduces described passage section area; Described valve spring 5 is installed on the lower cover 4, and described lower cover 4 is fastenedly connected with described limiting valve body 1.
Described lower cover 4 is by realizing sealing between O-ring seals 3 and the described limiting valve body 1.
Described lower cover 4 is fastenedly connected by back-up ring 2 and described limiting valve body 1.
Described suction valve spool 8 is realized sealing by seal ring 10 and described limiting valve body 1.
Described seal ring 10 is connected with described pressure adjusting spring 12 by piston 11.
Establish vent on the described pressure regulation cover 14, adopt dust ring 15 to cover on the outer aperture of described vent, described dust ring 15 is fixed on the described pressure regulation cover 14 by dustproof clip 16.
Described lower cover 4 is located on described limiting valve body 1 by back-up ring 2.
Described suction valve spool 8 is by seal ring 9 sealings.
Pressure-limit valve is mainly used in brake system pressure pipeline in truck or the engineering machinery; the pressurized air that compressor is come is limited in certain air pressure range; pass in the braking line of back, make the braking line air pressure of back be unlikely to too high, play the safety protection effect.
Its working principle is:
Pressurized air is entered in the limiting valve body 1 by suction port 19, and jack-up pressure adjusting spring 13 is closed inlet valve complement 8, and under the specified operating air pressure of suction port 19 inputs, assurance air outlet 18 output pressures are constant to be 810～850kPa.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or design of the present utility model and technological scheme are directly applied to other occasion without improving, all within protection domain of the present utility model.
Claims (7)
1. automobile or engineering machinery pressure regulation system pressure-limit valve, comprise limiting valve body (1), suction port (19) and air outlet (18), it is characterized in that: described pressure-limit valve is established valve assembly (7), and the structure of described valve assembly (7) is to establish the suction valve spool (8) of regulating this gas circuit passage section area size on suction port (19) leads to the gas circuit of air outlet (18); Described pressure-limit valve is established regulator, and described regulator comprises pressure adjusting spring (12), pressure regulating screw (17), and described pressure adjusting spring (12) is located in the pressure regulation cover (14), and described pressure regulation cover (14) is fastenedly connected with described limiting valve body (1); Described pressure regulating screw (17) is installed on the described pressure regulation cover (14), and is connected with described pressure adjusting spring (12) by pressure adjusting spring seat (13); The communication direction of the gas circuit of described suction port (19) and suction valve spool (8) reduces described passage section area, and the elastic force direction of described pressure adjusting spring (12) is that described passage section area is increased.
2. according to described automobile of claim 1 or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: described valve assembly (7) is connected with valve spring (5) by holder for valve spring (6); The elastic force direction of described valve spring (5) reduces described passage section area; Described valve spring (5) is installed on the lower cover (4), and described lower cover (4) is fastenedly connected with described limiting valve body (1).
3. according to described automobile of claim 2 or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: described lower cover (4) is by realizing sealing between O-ring seals (3) and the described limiting valve body (1).
4. according to claim 2 or 3 described automobiles or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: described lower cover (4) is fastenedly connected by back-up ring (2) and described limiting valve body (1).
5. according to described automobile of claim 1 or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: described suction valve spool (8) is realized sealing by seal ring (10) and described limiting valve body (1).
6. according to described automobile of claim 5 or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: described seal ring (10) is connected with described pressure adjusting spring (12) by piston (11).
7. according to described automobile of claim 1 or engineering machinery pressure regulation system pressure-limit valve, it is characterized in that: establish vent on the described pressure regulation cover (14), adopt dust ring (15) to cover on the outer aperture of described vent, described dust ring (15) is fixed on the described pressure regulation cover (14) by dustproof clip (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206743749U CN201992150U (en) | 2010-12-22 | 2010-12-22 | Pressure limiting valve of automobile or engineering machine air pressure adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206743749U CN201992150U (en) | 2010-12-22 | 2010-12-22 | Pressure limiting valve of automobile or engineering machine air pressure adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992150U true CN201992150U (en) | 2011-09-28 |
Family
ID=44668640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206743749U Expired - Fee Related CN201992150U (en) | 2010-12-22 | 2010-12-22 | Pressure limiting valve of automobile or engineering machine air pressure adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076889A1 (en) * | 2015-11-05 | 2017-05-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pressure-limiting valve |
| CN107869647A (en) * | 2016-09-28 | 2018-04-03 | 德罗普萨股份公司 | Over-pressed indicator and its external member and the method for setting its intervention pressure |
-
2010
- 2010-12-22 CN CN2010206743749U patent/CN201992150U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076889A1 (en) * | 2015-11-05 | 2017-05-11 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pressure-limiting valve |
| CN108473122A (en) * | 2015-11-05 | 2018-08-31 | 克诺尔商用车制动系统有限公司 | Pressure limit valve |
| RU2694674C1 (en) * | 2015-11-05 | 2019-07-16 | Кнорр-Бремзе Зюстеме Фюр Нутцфарцойге Гмбх | Pressure limiting valve |
| US10549740B2 (en) | 2015-11-05 | 2020-02-04 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Pressure-limiting valve |
| CN108473122B (en) * | 2015-11-05 | 2020-11-17 | 克诺尔商用车制动系统有限公司 | Pressure limiting valve |
| CN107869647A (en) * | 2016-09-28 | 2018-04-03 | 德罗普萨股份公司 | Over-pressed indicator and its external member and the method for setting its intervention pressure |
| CN107869647B (en) * | 2016-09-28 | 2020-11-03 | 德罗普萨股份公司 | Overpressure indicator, external member thereof and method for setting dry overpressure of external member |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20121222 |